Apparatus for sealing packaging containers
US6502372B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2000 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Nov 14, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S53/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for sealing a sealing area of a packaging container in which the sealing area has a predetermined exterior shape. The apparatus includes a generator, a horn and an anvil. The anvil has an abutting portion that conforms to the exterior shape of the sealing area of the packaging container. The plurality of slidable plates may be composed of a ferromagnetic material, a paramagnetic material or a ceramic material. The plurality of slidable plates are supported on an elastic sleeve that allows for the inward movement of the plates when the force exerted by the horn on the sealing area exceeds the elastic force of the sleeve thereby allowing the corresponding plurality of slidable plates to conform to the exterior shape of the sealing area of the packaging container. An electromagnet may be used to restrict the movement of the slidable plates subsequent to their conforming to the exterior shape of the sealing area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.